I had a similar concern about getting my Westy in the garage.  I think 82"
is pretty close to the actual height.  What I had to do was to manually
release the garage door to allow it to slide further up the track which
enlarged the opening by a couple of critical inches.  It's kind of a pain to
have to get out of the van each time to open and close the garage door but
it's worth it.  It's also not my daily driver which makes it easier.

Gerry Royston
'87 Westy
'96 Cabrio